feat: add optional frontend adapter recipes

tests/fixtures/optional-recipes/forbidden/credential-leak/src/adapters/bad-storage.ts

@@ -0,0 +1,3 @@
+export function persistCredential(token: string) {
+  localStorage.setItem("authToken", token);
+}

tests/fixtures/optional-recipes/forbidden/production-import/src/bad.ts

@@ -0,0 +1,3 @@
+import { OPTIONAL_RECIPE_RUNTIME_SENTINEL } from "../../../../../../recipes/frontend-capabilities/index.js";
+
+export const recipeInProduction = OPTIONAL_RECIPE_RUNTIME_SENTINEL;

tests/fixtures/optional-recipes/forbidden/server-state/src/bad-store.ts

@@ -0,0 +1,3 @@
+export const store = createStore({
+  serverState: [{ id: "copied-from-query-cache" }],
+});

tests/fixtures/optional-recipes/forbidden/vendor-import/src/presentation/bad-vendor.ts

@@ -0,0 +1,3 @@
+import { initialize } from "@launchdarkly/client-sdk";
+
+export const leakedVendor = initialize;